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Consiglio G, Gorcyński A, Petralia S, Forte G. Predicting the dye-sensitized solar cell performance of novel linear carbon chain-based dyes: insights from DFT simulations. Dalton Trans 2023; 52:15995-16004. [PMID: 37847522 DOI: 10.1039/d3dt01856c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
In this paper, we employ density functional theory (DFT) simulations to predict the energy conversion efficiency of a novel class of organic dyes based on linear carbon chain (LCC) linkers for application in dye-sensitized solar cells (DSSCs). We investigate the role of the anchoring group, which serves as a bridge connecting the linker and the surface. Specifically, we compare the performance of cyanoacrylic acid, dyes PY-4N and PY-3N, with that of phosphonate derivatives, dyes PY-4NP and PY-3NP, wherein the carboxylic group of the cyanoacrylic moiety is replaced with phosphonic acid. The observed variations in the UV/VIS absorption spectra have a slight impact on the light harvesting efficiency (LHE). Based on the empirical parameters we have taken into account, the electron injection efficiency (Φinj) and electron collection efficiency (ηcoll) values do not impact the short-circuit current density (JSC) values of all the studied dyes. The open-circuit voltage (Voc) is theoretically predicted using the improved normal model (INM) method. Among the dyes, PY-4N and PY-3N demonstrate the highest Voc values. This can be attributed to a more favorable recombination rate value, which is related to the energy gap between the HOMO level of the dyes and the conduction band minimum (CBM) of the surface. Dyes PY-4N and PY-3N are predicted to demonstrate remarkably high photoelectric conversion efficiency (PCE) values of approximately 21.79% and 16.52%, respectively, and therefore, they are expected to be potential candidates as organic dyes for applications in DSSCs. It is worth noting that PY-4NP and PY-3NP exhibit strong adsorption energy on the surface and interesting PCE values of 11.66% and 8.29%, respectively. This opens up possibilities for their application in DSSCs either as standalone sensitizers or as co-sensitizers alongside metal-free organic dyes or organic-inorganic perovskite solar cells.
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Affiliation(s)
- Giuseppe Consiglio
- Department of Chemical Sciences, University of Catania, Via S. Sofia 64, 95125, Italy
| | - Adam Gorcyński
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| | - Salvatore Petralia
- Department of Drug Sciences and Health, University of Catania, Via S. Sofia 64, 95125, Italy.
| | - Giuseppe Forte
- Department of Drug Sciences and Health, University of Catania, Via S. Sofia 64, 95125, Italy.
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2
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Zhu X, Xu J, Cen H, Wu Z, Dong H, Xi J. Perspectives for the conversion of perovskite indoor photovoltaics into IoT reality. NANOSCALE 2023; 15:5167-5180. [PMID: 36846869 DOI: 10.1039/d2nr07022g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
As a competitive candidate for powering low-power terminals in Internet of Things (IoT) systems, indoor photovoltaic (IPV) technology has attracted much attention due to its effective power output under indoor light illumination. One such emerging photovoltaic technology, perovskite cell, has become a hot topic in the field of IPVs due to its outstanding theoretical performance limits and low manufacturing costs. However, several elusive issues remain limiting their applications. In this review, the challenges for perovskite IPVs are discussed in view of the bandgap tailoring to match indoor light spectra and the defect trapping regulation throughout the devices. Then, we summarize up-to-date perovskite cells, highlighting advanced strategies such as bandgap engineering, film engineering and interface engineering to enhance indoor performance. The investigation of indoor applications of large and flexible perovskite cells and integrated devices powered by perovskite cells is exhibited. Finally, the perspectives for the perovskite IPV field are provided to help facilitate the further improvement of indoor performance.
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Affiliation(s)
- Xinyi Zhu
- Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Lab of Information Photonic Technique, School of Electronic Science and Engineering, Xi'an Jiaotong University, No. 28, Xianning West Road, Xi'an, 710049, China.
| | - Jie Xu
- School of Science, Xi'an University of Architecture and Technology, Xi'an, 710055, China
| | - Hanlin Cen
- Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Lab of Information Photonic Technique, School of Electronic Science and Engineering, Xi'an Jiaotong University, No. 28, Xianning West Road, Xi'an, 710049, China.
| | - Zhaoxin Wu
- Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Lab of Information Photonic Technique, School of Electronic Science and Engineering, Xi'an Jiaotong University, No. 28, Xianning West Road, Xi'an, 710049, China.
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China
| | - Hua Dong
- Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Lab of Information Photonic Technique, School of Electronic Science and Engineering, Xi'an Jiaotong University, No. 28, Xianning West Road, Xi'an, 710049, China.
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China
| | - Jun Xi
- Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Lab of Information Photonic Technique, School of Electronic Science and Engineering, Xi'an Jiaotong University, No. 28, Xianning West Road, Xi'an, 710049, China.
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3
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Consiglio G, Gorcyński A, Petralia S, Forte G. Computational study of linear carbon chain based organic dyes for dye sensitized solar cells. RSC Adv 2023; 13:1019-1030. [PMID: 36686920 PMCID: PMC9811357 DOI: 10.1039/d2ra06767f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 12/13/2022] [Indexed: 01/06/2023] Open
Abstract
Spectroscopic, electronic and electron injection properties of a new class of linear carbon chain (LCC) based organic dyes have been investigated, by means of density functional theory (DFT) and time-dependent density functional theory (TDDFT), for application in dye-sensitized solar cells (DSSCs). The photophysical properties of LCC-based dyes are tuned by changing the length of the linear carbon chain; UV/VIS absorption is red-shifted with increasing LCC length whereas oscillator strength and electron injection properties are reduced. Excellent nonlinear optical properties are predicted in particular for PY-N4 and PY-S4 dyes in the planar conformation. Results indicate that a LCC-bridge produces better results compared to benzene and thiophene bridges. Simulations of I--Dye@(TiO2)14 and Dye@(TiO2)14 anatase complexes indicate that designed dyes inject electrons efficiently into the TiO2 surface and can be regenerated by electron transfer from the electrolyte. Superior properties in terms of efficiency are shown by compounds with a pyrrole ring as the donor group and PY-3N is expected to be a promising candidate for applications, however all the investigated dyes could provide a good performance in solar energy conversion. Our study demonstrates that computational design can provide a significant contribution to experimental work; we expect this study will contribute to future developments to identify new and highly efficient sensitizers.
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Affiliation(s)
- Giuseppe Consiglio
- Department of Chemical Science University of Catania Via S. Sofia 64 95125 Italy
| | - Adam Gorcyński
- Faculty of Chemistry, Adam Mickiewicz University Uniwersytetu Poznańskiego 8 61-614 Poznań Poland
| | - Salvatore Petralia
- Department of Drug Science and Health University of Catania Via S. Sofia 64 95125 Italy
| | - Giuseppe Forte
- Department of Drug Science and Health University of Catania Via S. Sofia 64 95125 Italy
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4
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Push-Pull Structures Based on 2-Aryl/thienyl Substituted Quinazolin-4(3H)-ones and 4-Cyanoquinazolines. Molecules 2022; 27:molecules27217156. [DOI: 10.3390/molecules27217156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 10/17/2022] [Accepted: 10/20/2022] [Indexed: 11/06/2022] Open
Abstract
Design and synthesis of 2-(aryl/thiophen-2-yl)quinazolin-4(3H)-ones and 4-cyano-2-arylquinazolines with Et2N-, Ph2N- or carbazol-9-yl- electron donating fragment are described. The key photophysical properties of these compounds have been studied by UV/Vis absorption and fluorescence spectroscopy in solvents of different polarity (toluene and MeCN). 2-(Aryl/thiophen-2-yl)quinazolin-4(3H)-ones show fluorescence in blue-green region in toluene solution with quantum yields up to 89% in the case of 2-(4’-N,N-diphenylamino[1,1’-biphenyl]-4-yl)-quinazolin-4(3H)-one. Moreover, triphenylamino derivative based on quinazolin-4(3H)-one with para-phenylene linker displays the highest quantum yield of 40% in powder. The fluorescence QY of Et2N and Ph2N derivatives decrease when going from toluene to MeCN solution, whereas carbazol-9-yl counterparts demonstrate strengthening of intensity that emphasizes the strong influence of donor fragment nature on photophysical properties. 4-Cyanoquinazolines are less emissive in both solvents, as well as, in solid state. The introduction of cyano group into position 4 leads to orange/red colored powder and dual emission bands. Some molecules demonstrate the increase in emission intensity upon addition of water to MeCN solution. According to frontier molecular orbitals (HOMO, LUMO) calculations, the energy gap of 4-cyanoquinazoline decreases by more than 1 eV compared to quinazolin-4-one, that is consistent with experimental data.
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Wang X, Wang Y, Zou J, Luo J, Li C, Xie Y. Efficient Solar Cells Sensitized by Organic Concerted Companion Dyes Suitable for Indoor Lamps. CHEMSUSCHEM 2022; 15:e202201116. [PMID: 35702052 DOI: 10.1002/cssc.202201116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Indexed: 06/15/2023]
Abstract
In this work, organic concerted companion (CC) dyes CCOD-1 and CCOD-2 were constructed by covalently linking two organic dye units with complementary absorption spectra. Both CC dyes exhibited intense absorption from 300 to 650 nm with the band edges extended to 700 nm. These CC dyes were used to fabricate dye-sensitized solar cells (DSSCs), and the photovoltaic performance was investigated using different light sources. CCOD-2 possessed bulkier outer shelter than CCOD-1 owing to the longer carbon chains (C12 ) at the donor moiety, and thus it had stronger anti-aggregation and anti-charge-recombination ability. Under simulated sunlight (AM1.5G), CCOD-2 exhibited enhanced photovoltaic behavior with an open-circuit voltage (VOC ) of 759 mV, short-circuit current density (JSC ) of 19.23 mA ⋅ cm-2 , and power conversion efficiency (PCE) of 10.4 %, respectively. Notably, under the illumination of the indoor T5 fluorescent lamp (2500 lux), CCOD-2 afforded an enhanced PCE of 28.0 % with remarkable VOC and JSC of 692 mV and 0.424 mA cm-2 , respectively. Notably, the PCE achieved for CCOD-2 outperformed those of the reference sensitizer N719 and our previously reported CC dyes XW61 and XW70-C8 under the same indoor lamp conditions. In summary, the novel organic CC dyes developed in this work were demonstrated to be promising for fabricating DSSCs to efficiently harvest the energy of indoor lamps.
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Affiliation(s)
- Xueyan Wang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, China
| | - Yuqing Wang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, China
| | - Jiazhi Zou
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, China
| | - Jiaxin Luo
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, China
| | - Chengjie Li
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, China
| | - Yongshu Xie
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, China
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6
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Michelet V, Marsicano V, Arcadi A. Gold‐Catalyzed Regioselective Oxyfluorination / Oxydifluorination vs. Diketonization of Phthalimido‐Protected Propargylamines with Selectfluor. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Veronique Michelet
- University of Cote d'Azur: Universite de Nice Sophia Antipolis CHEMISTRY Parc Valrose 06100 NICE FRANCE
| | - Vincenzo Marsicano
- Nice University: Universite de Nice Sophia Antipolis Chemistry Parc Valrose FRANCE
| | - Antonio Arcadi
- University of L'Aquila Department of Physical and Chemical Sciences: Universita degli Studi dell'Aquila Dipartimento di Scienze Fisiche e Chimiche Chemistry L'Aquila ITALY
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7
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Spiro‐sulfone‐based Auxiliary Acceptor in D‐A‐π‐A Dye‐sensitized Solar Cells Application under Indoor/Outdoor Light. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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8
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Jahandar M, Kim S, Lim DC. Indoor Organic Photovoltaics for Self-Sustaining IoT Devices: Progress, Challenges and Practicalization. CHEMSUSCHEM 2021; 14:3449-3474. [PMID: 34056847 PMCID: PMC8519124 DOI: 10.1002/cssc.202100981] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 05/28/2021] [Indexed: 06/01/2023]
Abstract
Indoor photovoltaics (IPVs) have great potential to provide a self-sustaining power source for Internet-of-Things (IoT) devices. The rapid growth in demand for low-power IoT devices for indoor application not only boosts the development of high-performance IPVs, but also promotes the electronics and semiconductor industry for the design and development of ultra-low-power IoT systems. In this Review, the recent progress in IPV technologies, design rules, market trends, and future prospects for highly efficient indoor photovoltaics are discussed. Special attention is given to the progress and development of organic photovoltaics (OPVs), which demonstrate great possibilities for IPVs, owing to their bandgap tunability, high absorbance coefficient, semitransparency, solution processability, and easy large-area manufacturing on flexible substrates. Highly efficient indoor organic photovoltaics (IOPVs) can be realized through designing efficient donor and acceptor absorber materials that have good spectral responses in the visible region and better energy-aligned interfacial layers, and through modulation of optical properties. Interfacial engineering, photovoltage losses, device stability, and large-area organic photovoltaic modules are surveyed to understand the mechanisms of efficient power conversion and challenges for IOPVs under indoor conditions as a self-sustaining power source for IoT devices. Finally, the prospects for further improve in IOPV device performance and practical aspects of integrating IOPVs in low-power IoT devices are discussed.
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Affiliation(s)
- Muhammad Jahandar
- Energy and Electronic Materials CenterKorea Institute of Materials Science (KIMS), KoreaChangwon51508Republic of Korea
| | - Soyeon Kim
- Energy and Electronic Materials CenterKorea Institute of Materials Science (KIMS), KoreaChangwon51508Republic of Korea
| | - Dong Chan Lim
- Energy and Electronic Materials CenterKorea Institute of Materials Science (KIMS), KoreaChangwon51508Republic of Korea
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9
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Berens HRV, Mohammad K, Reiss GJ, Müller TJJ. 3,9-Disubstituted Bis[1]benzothieno[3,2- b;2',3'- e][1,4]thiazines with Low Oxidation Potentials and Enhanced Emission. J Org Chem 2021; 86:8000-8014. [PMID: 34101441 DOI: 10.1021/acs.joc.1c00397] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Dibrominated bis[1]benzothieno[3,2-b;2',3'-e][1,4]thiazines (BBTT) are efficiently synthesized and applied in Suzuki and Buchwald-Hartwig cross-coupling reactions to give access to 3,9-disubstituted BBTT derivatives with extended π-conjugation and enhanced electronic properties. For instance, 3,9-di(hetero)aryl substituted BBTT derivatives surpass their parent congeners phenothiazines with lower oxidation potentials and pronounced yellow to orange-red fluorescence (Φf ≈ 30-45%). In addition, 3,9-bis(di(hetero)arylamino substituted BBTT possess very high lying HOMO energy (EHOMO = -4.46 to -4.83 eV), a favorable property of hole transport molecules. A representative X-ray structure analysis reveals that the central BBTT core in these extended π-systems is essentially planarized. Upon protonation of a 3,9-bis(di(hetero)arylamino) substituted BBTT, the absorption color shifts from yellow to deep blue with a concomitant loss of the emission. The optical properties of these novel BBTT derivatives can be plausibly rationalized by time-dependent density functional theory (TD(DFT)) calculations and correlation between experimentally determined oxidation potentials and σp parameters as well as between photophysical data and the specific substituent parameter σp- by establishing electronic structure-property relationships.
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Affiliation(s)
- Henning R V Berens
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, D-40225 Düsseldorf, Germany
| | - Kausar Mohammad
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, D-40225 Düsseldorf, Germany
| | - Guido J Reiss
- Institut für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, D-40225 Düsseldorf, Germany
| | - Thomas J J Müller
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, D-40225 Düsseldorf, Germany
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10
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Putta RR, Chun S, Lee SB, Hong J, Oh DC, Hong S. Iron-catalyzed one-pot synthesis of quinoxalines: transfer hydrogenative condensation of 2-nitroanilines with vicinal diols. RSC Adv 2021; 11:18225-18230. [PMID: 35480939 PMCID: PMC9033394 DOI: 10.1039/d1ra02532e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 05/13/2021] [Indexed: 01/06/2023] Open
Abstract
Here, we report iron-catalyzed one-pot synthesis of quinoxalines via transfer hydrogenative condensation of 2-nitroanilines with vicinal diols. The tricarbonyl (η4-cyclopentadienone) iron complex, which is well known as the Knölker complex, catalyzed the oxidation of alcohols and the reduction of nitroarenes, and the corresponding carbonyl and 1,2-diaminobenzene intermediates were generated in situ. Trimethylamine N-oxide was used to activate the iron complex. Various unsymmetrical and symmetrical vicinal diols were applied for transfer hydrogenation, resulting in quinoxaline derivatives in 49–98% yields. A plausible mechanism was proposed based on a series of control experiments. The major advantages of this protocol are that no external redox reagents or additional base is needed and that water is liberated as the sole byproduct. A transfer hydrogenative condensation between 2-nitroanilines and vicinal diols for the synthesis of quinoxalines, with no additional oxidant, reductant and base.![]()
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Affiliation(s)
- Ramachandra Reddy Putta
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Republic of Korea
| | - Simin Chun
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Republic of Korea
| | - Seok Beom Lee
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Republic of Korea
| | - Junhwa Hong
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Republic of Korea
| | - Dong-Chan Oh
- Natural Products Research Institute, College of Pharmacy, Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Republic of Korea
| | - Suckchang Hong
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Republic of Korea
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11
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Huang JF, Lei Y, Xiao LM, Chen XL, Zhong YH, Qin S, Liu JM. Photocatalysts for H 2 Generation from Starburst Triphenylamine/Carbazole Donor-Based Metal-Free Dyes and Porous Anatase TiO 2 Cube. CHEMSUSCHEM 2020; 13:1037-1043. [PMID: 31885192 DOI: 10.1002/cssc.201902742] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 12/27/2019] [Indexed: 06/10/2023]
Abstract
A series of novel triphenylamine/carbazole-based D-D-π-π-A dyes DH1-4 and a mesoporous anatase cubic "microcage" TiO2 material (denoted as MC-TiO2 ) were synthesized and combined to obtain dye-sensitized photocatalysts (denoted as DHn/Pt/MC-TiO2 , n=1-4). These catalysts showed better performances in visible-light-driven H2 evolution from water than DHn/Pt/P25-TiO2 catalysts based on commercial P25-TiO2 bulk semiconductor under similar conditions. Compared with P25-TiO2 particles, the porous MC-TiO2 had a large Brunauer-Emmett-Teller surface area, porosity, and exposed {0 0 1} crystal plane, which greatly contributed to the photocatalytic activity. The optimized DH2/Pt/MC-TiO2 photocatalyst exhibited an attractive H2 production rate (16.28 mmol g-1 h-1 based on catalyst mass), and the optimized DH4/Pt/MC-TiO2 photocatalyst showed good stability [turnover number (TON) of 16 699 in 105 h based on dye number], which represents one of the best performances among all reported visible-light-driven heterogeneous catalytic systems. Compared with the other dyes in this series, the high H2 production rate of DH2 on Pt/MC-TiO2 can be attributed to its size-matching effect and thus high dye loading amount, whereas the high TON and durability of DH4/Pt/MC-TiO2 are probably related to the rapid regeneration kinetics of DH4.
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Affiliation(s)
- Jian-Feng Huang
- School of Materials Science and Engineering, Sun Yat-sen University, 510275, Guangzhou, P.R. China
| | - Yang Lei
- School of Materials Science and Engineering, Sun Yat-sen University, 510275, Guangzhou, P.R. China
| | - Li-Min Xiao
- School of Computer Science and Engineering, Beihang University, 100191, Beijing, P.R. China
| | - Xin-Lun Chen
- School of Materials Science and Engineering, Sun Yat-sen University, 510275, Guangzhou, P.R. China
| | - Yu-Hui Zhong
- School of Materials Science and Engineering, Sun Yat-sen University, 510275, Guangzhou, P.R. China
| | - Su Qin
- School of Materials Science and Engineering, Sun Yat-sen University, 510275, Guangzhou, P.R. China
| | - Jun-Min Liu
- School of Materials Science and Engineering, Sun Yat-sen University, 510275, Guangzhou, P.R. China
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12
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Xie F, Li Y, Chen X, Chen L, Zhu Z, Li B, Huang Y, Zhang K, Zhang M. Direct synthesis of novel quinoxaline derivatives via palladium-catalyzed reductive annulation of catechols and nitroarylamines. Chem Commun (Camb) 2020; 56:5997-6000. [DOI: 10.1039/c9cc09649c] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A palladium-catalyzed new hydrogenative annulation reaction of catechols and nitroarylamines, allowing straightforward access to two classes of novel quinoxaline derivatives, has been demonstrated.
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Affiliation(s)
- Feng Xie
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen 529020
- China
| | - Yibiao Li
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen 529020
- China
| | - Xiuwen Chen
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen 529020
- China
| | - Lu Chen
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen 529020
- China
| | - Zhongzhi Zhu
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen 529020
- China
| | - Bin Li
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen 529020
- China
| | - Yubing Huang
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen 529020
- China
| | - Kun Zhang
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen 529020
- China
| | - Min Zhang
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen 529020
- China
- South China University of Technology
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13
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Venkatesan S, Lin WH, Teng H, Lee YL. High-Efficiency Bifacial Dye-Sensitized Solar Cells for Application under Indoor Light Conditions. ACS APPLIED MATERIALS & INTERFACES 2019; 11:42780-42789. [PMID: 31618583 DOI: 10.1021/acsami.9b14876] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
High-efficiency, stable bifacial dye-sensitized solar cells (DSSCs) are prepared for application under indoor light conditions. A 3-methoxypropionitrile solvent and cobalt redox couples are utilized to prepare the electrolytes. To obtain the best cell performance, the components of the DSSCs, including electrolytes, photoanodes, and counter electrodes (CEs), are regulated. The experimental results indicate that an electrolyte comprising a Co (II/III) ratio of 0.11/0.025 M, 1.2 M 4-tert-butylpyridine, Y123 dye, a CE with the platinum (Pt) layer thickness of 0.16 nm, and a photoanode with titanium dioxide (TiO2) layer thickness of 10 μm (6 μm main layer and 4 μm scattering layer) are the best conditions under which to achieve a high power conversion efficiency. It is also found that the best cells have high recombination resistance at the photoelectrode/electrolyte interface and low charge transfer resistance at the counter electrode/electrolyte interface, which contributes to, respectively, the high current density and open-circuit voltage of the corresponding cells. This DSSC can achieve efficiencies of 22.66%, 23.48%, and 24.52%, respectively, under T5 light illumination of 201.8, 607.8, and 999.6 lx. For fabrication of bifacial DSSCs with a semitransparent property, photoanodes without the TiO2 scattering layer, as well as an ultrathin Pt film, are utilized. The thicknesses of the TiO2 main layer and Pt film are reregulated. This shows that a Pt film with 0.55 nm thickness has both high transmittance (76.01%) and catalytic activity. By using an 8 μm TiO2 main layer, optimal cell efficiencies of 20.65% and 17.31% can be achieved, respectively, for the front-side and back-side illuminations of 200 lx T5 light. The cells are highly stable during a long-term performance test at both 35 and 50 °C.
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Affiliation(s)
| | - Wei-Hsun Lin
- Department of Chemical Engineering , National Cheng Kung University , Tainan 70101 , Taiwan, R.O.C
| | - Hsisheng Teng
- Department of Chemical Engineering , National Cheng Kung University , Tainan 70101 , Taiwan, R.O.C
- Hierarchical Green-Energy Materials (Hi-GEM) Research Center , National Cheng Kung University , Tainan 70101 , Taiwan, R.O.C
| | - Yuh-Lang Lee
- Department of Chemical Engineering , National Cheng Kung University , Tainan 70101 , Taiwan, R.O.C
- Hierarchical Green-Energy Materials (Hi-GEM) Research Center , National Cheng Kung University , Tainan 70101 , Taiwan, R.O.C
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